Light-controllable polymeric material based on temperature-sensitive hydrogels with incorporated graphene oxide

L. Breuer, M. Raue, M. Kirschbaum, T. Mang, M. J. Schöning, R. Thoelen, T. Wagner

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Poly(N-isopropylacrylamide) (PNIPAAm) hydrogel films with incorporated graphene oxide (GO) were developed and tested as light-stimulated actuators. GO dispersions were synthesized via Hummers method and characterized toward their optical properties and photothermal energy conversion. The hydrogels were prepared by means of photopolymerization. In addition, the influence of GO within the hydrogel network on the lower critical solution temperature (LCST) was investigated by differential scanning calorimetry (DSC). The optical absorbance and the response to illumination were determined as a function of GO concentration for thin hydrogel films. A proof of principle for the stimulation with light was performed.

Original languageEnglish
Pages (from-to)1368-1374
Number of pages7
JournalPhysica Status Solidi (A) Applications and Materials Science
Volume212
Issue number6
DOIs
Publication statusPublished - 2015 Jun 1

Keywords

  • actuators
  • graphene oxide
  • photopolymerization
  • polymers
  • responsive hydrogels

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering
  • Materials Chemistry

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